--- zzzz-none-000/linux-4.4.271/mm/rmap.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/mm/rmap.c	2023-04-19 10:22:30.000000000 +0000
@@ -1488,6 +1488,7 @@
 		}
 		dec_mm_counter(mm, MM_ANONPAGES);
 		inc_mm_counter(mm, MM_SWAPENTS);
+		inc_mm_counter(mm, MM_SWAPOUTS);
 		swp_pte = swp_entry_to_pte(entry);
 		if (pte_soft_dirty(pteval))
 			swp_pte = pte_swp_mksoft_dirty(swp_pte);